in my opinion Broodwars' storyline is better than Wings Of Liberty's and it leads up to greater events than what is actually displayed in WoL.

You know the story sort of bothered me. It just seemed mostly as an after the fact excuse for lending credence to some of the scenarios where previous enemy factions starting working together as allies.

Spoiler –STORY

The oddest story arc was the Matriarch getting corrupted/controlled by Kerrigan. How could a creature with such immense psychic powers be controlled?